LTC4232IDHC-1

Product Overview

Category

The LTC4232IDHC-1 belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power supply sequencing and protection in various electronic systems.

Characteristics

• Power supply sequencing and protection
• Wide input voltage range: 2.9V to 20V
• Adjustable undervoltage lockout (UVLO)
• Overvoltage protection (OVP)
• Reverse current blocking
• Fault flag output
• Small package size

Package

The LTC4232IDHC-1 is available in a small form factor 16-pin plastic dual-in-line package (DIP).

Essence

The essence of LTC4232IDHC-1 lies in its ability to provide reliable power supply sequencing and protection, ensuring proper operation and preventing damage to sensitive electronic components.

Packaging/Quantity

The LTC4232IDHC-1 is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.9V to 20V
• Operating Temperature Range: -40°C to 85°C
• Maximum Output Current: 10A
• Quiescent Current: 50µA
• UVLO Threshold: Adjustable from 2.5V to 19V
• OVP Threshold: Adjustable from 2.5V to 19V
• Fault Flag Threshold: Adjustable from 2.5V to 19V

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground reference
3. FLT: Fault flag output
4. EN: Enable pin
5. OVSET: Overvoltage threshold adjustment
6. UVSET: Undervoltage threshold adjustment
7. UVLO: Undervoltage lockout input
8. OVLO: Overvoltage lockout input
9. VOUT: Output voltage
10. GATE: Gate drive output
11. PGND: Power ground reference
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Power supply sequencing: Ensures proper power-up and shutdown sequence for multiple power rails.
• Undervoltage lockout (UVLO): Prevents operation below a specified voltage threshold, protecting against insufficient power supply.
• Overvoltage protection (OVP): Safeguards against excessive voltage levels that could damage the system.
• Reverse current blocking: Prevents reverse current flow from the output to the input.
• Fault flag output: Provides an indication of any fault condition detected by the LTC4232IDHC-1.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile application in various systems.
• Adjustable UVLO, OVP, and fault flag thresholds provide flexibility in customization.
• Small package size enables space-efficient integration into electronic designs.
• Reliable power sequencing and protection enhance system reliability and longevity.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires external components for complete functionality, adding complexity to the design.

Working Principles

The LTC4232IDHC-1 operates by monitoring the input voltage and comparing it to the adjustable UVLO and OVP thresholds. It ensures that the output voltage is within the desired range and prevents reverse current flow. The fault flag output provides an indication of any detected fault condition.

Detailed Application Field Plans

The LTC4232IDHC-1 finds applications in various electronic systems where power supply sequencing and protection are critical. Some specific application fields include:

1. Server and data center power management
2. Industrial automation systems
3. Telecommunications equipment
4. Automotive electronics
5. Medical devices

Detailed and Complete Alternative Models

1. LTC4232-1: Similar to LTC4232IDHC-1 but available in a different package (QFN).
2. LTC4232-2: Lower maximum output current but offers additional features such as adjustable soft-start and power good outputs.
3. LTC4232-3: Higher maximum output current and extended temperature range, suitable for more demanding applications.

These alternative models provide options with varying specifications and features to cater to different design requirements.

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